Question regarding light meter reading (sun vs. flourescent)
Login
User Name
Password   


Registration is FREE. Click to become a member of OrchidBoard community
(You're NOT logged in)

menu menu

Sponsor
Donate Now
and become
Forum Supporter.

Question regarding light meter reading (sun vs. flourescent)
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
Register Question regarding light meter reading (sun vs. flourescent) Members Question regarding light meter reading (sun vs. flourescent) Question regarding light meter reading (sun vs. flourescent) Today's PostsQuestion regarding light meter reading (sun vs. flourescent) Question regarding light meter reading (sun vs. flourescent) Question regarding light meter reading (sun vs. flourescent)
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
Go Back   Orchid Board - Most Complete Orchid Forum on the web ! > >
Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old 05-14-2011, 06:44 PM
Paul Mc Paul Mc is offline
Senior Member
 

Join Date: Aug 2010
Location: St. Louis, MO
Posts: 3,806
Question regarding light meter reading (sun vs. flourescent) Male
Default Question regarding light meter reading (sun vs. flourescent)

I'm trying to understand why when I have a light meter under a CFL 45W light with the switch to sun the needle is in the same position as it is when I switch it to the Flourscent setting. I understand that the calculations are different for my meter (sun = # x 1000, flourscent = # x 10). For example, the sun reading might say 2500 but the Flourescent reading would be 250. My confusion is based upon the amount of light I'm seeing and why the two readings are so vastly different.

I'm attempting to determine where to place my new mini orchids in my terrarium and am confused by what I'm reading and the amount of light I'm visually seeing.
Reply With Quote
  #2  
Old 05-15-2011, 09:14 AM
Ray's Avatar
Ray Ray is offline
Senior Member
 

Join Date: May 2005
Member of:AOS
Location: Oak Island NC
Posts: 15,191
Question regarding light meter reading (sun vs. flourescent) Male
Default

I don't understand that at all. Light intensity is light intensity, no matter the source. Yes, the spectrum might be different between two sources, but a lumen is a lumen.
__________________
Ray Barkalow, Orchid Iconoclast
FIRSTRAYS.COM
Try Kelpak - you won't be sorry!
Reply With Quote
  #3  
Old 05-15-2011, 09:36 AM
Paul Mc Paul Mc is offline
Senior Member
 

Join Date: Aug 2010
Location: St. Louis, MO
Posts: 3,806
Question regarding light meter reading (sun vs. flourescent) Male
Default

Hey Ray! Well, the light meter is the one I bought from you and I can't seem to find my book at the moment or I would have read to find my answer. I'm sorry.

My confusion is that on the face of the meter it has two different readings. One for Sun & HID and the other for Flourescent readings. The Sun & HID has a "x1000" by it and the HID has a "x10" by it. The Sun & HID is by intervals of 1's while the Flourescent is in intervals of 10's on the needle chart.

So for example, on both settings the needle hits the 3 for Sun and 30 for Flourescent (needle in the exact same place for both settings). After the designated multiplication it's 3000 for sun and 300 for Flourescent.

Again, my apologies for my ignorance when it comes to light. I'm trying my best to learn as much as I can about it now but it's still relatively confusing to me. I was never good at science stuff, lol...
Reply With Quote
Reply

Bookmarks

Tags
flourescent, flourscent, light, meter, question, reading, sun


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
LED Light vs Flourescent Lights Destan77 Beginner Discussion 14 09-20-2011 10:59 PM
A dumb artificial light question Becca Terrarium Gardening 7 12-17-2009 12:48 PM
Dang it! Another question about (T5) light. justjill3 Growing Under Lights 4 12-05-2007 06:15 AM
physics question concerning light FinnBar Scientific Matters 3 11-07-2007 11:21 PM
Fine I'll say Hi Vim Introductions - Break the Ice ! 13 04-02-2006 01:30 AM

All times are GMT -4. The time now is 05:14 AM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.